nutrient content in leaf 叶片营养元素含量
The relationship between the leaves and the nutrient content was investigated by analyzing the color properties of leaves' images and the leaf nutrition content.
并根据叶片营养含量的测定，研究了叶片颜色特征与叶片养分含量之间的关系。
Nutrient element content is different in organs, but it is highest in leaf.
地上各器官营养元素含量因器官、元素而异，但尤以叶的含量最高。
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